You have to include the likes the of Thompson and Lillee but my vote would go to Trueman and Brian Statham.
Statham was the foil to Trueman's sabre and if you're talking about partnerships then you have to have a pair who complimented each other so perfectly.
Joel Garner and Malcolm Marshall were the greatest in their era. They were so feared by batsman.
I don't know i just know mcGrath is a great opening bowler
btw how fast was Gillespie?